/** Enters a stack context instance (private since instances are not configurable). */
private static StackContext enter() {
StackContext ctx = AbstractContext.current(StackContext.class);
if (ctx == null) {
ctx = STACK_CONTEXT_TRACKER.getService(WAIT_FOR_SERVICE.get(), DEFAULT);
}
return (StackContext) ctx.enterInner();
}
/**
* Executes the specified function allocating objects on the stack; the function result is copied
* to calling context.
*/
public static <P, R extends Copyable<R>> R execute(Function<P, R> function, P parameter) {
StackContext ctx = StackContext.enter();
try {
return ctx.executeInContext(function, parameter);
} finally {
ctx.exit();
}
}
/** Executes the specified logic allocating objects on the stack. */
public static void execute(Runnable logic) {
StackContext ctx = StackContext.enter();
try {
ctx.executeInContext(logic);
} finally {
ctx.exit();
}
}